EP0923747B1 - Systeme de formation de faisceau optique - Google Patents
Systeme de formation de faisceau optique Download PDFInfo
- Publication number
- EP0923747B1 EP0923747B1 EP97940157A EP97940157A EP0923747B1 EP 0923747 B1 EP0923747 B1 EP 0923747B1 EP 97940157 A EP97940157 A EP 97940157A EP 97940157 A EP97940157 A EP 97940157A EP 0923747 B1 EP0923747 B1 EP 0923747B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- beam shaping
- shaping system
- cylindrical lenses
- optical
- array
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0955—Lenses
- G02B27/0961—Lens arrays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0911—Anamorphotic systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0955—Lenses
- G02B27/0966—Cylindrical lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
- G02B3/005—Arrays characterized by the distribution or form of lenses arranged along a single direction only, e.g. lenticular sheets
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
- G02B3/0062—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between
- G02B3/0068—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between arranged in a single integral body or plate, e.g. laminates or hybrid structures with other optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0012—Arrays characterised by the manufacturing method
- G02B3/0025—Machining, e.g. grinding, polishing, diamond turning, manufacturing of mould parts
Definitions
- the present invention relates to an optical beam shaping system according to the preamble of claim 1.
- Optical beam shaping systems are generally referred to Arrangements of optical elements with which an irradiated Beam of light defined in terms of its beam parameters is modified.
- the main ones occur in practice Applications on that for a beam in cross section defined geometric shape and size, for example circular, rectangular or lattice-shaped or the like and / or an over its cross section defined intensity distribution is required.
- both properties have to be influenced at the same time, for example if the light source is the input beam for the beam shaping system, with a beam uneven intensity distribution and irregular provides geometrical dimensions, however, for the output beam of the beamforming system with respect to this Properties defined specifications are made.
- EP 0 232 for example 037 A2 optical beam shaping systems known in the one Beam of light irradiated with uneven energy distribution can be, with their output beam over his Cross section has a uniform intensity distribution.
- beam shaping systems are also called homogenizers designated.
- the aforementioned homogenizer has conventional optical elements, such as positive lenses curved, i.e. convex interfaces covering the entire Capture beam cross-section of the beam introduced, too so-called lens arrays, which are composed of lenses, each only a part of the beam cross-section, d. H. Partial beam, capture.
- optical elements such as positive lenses curved, i.e. convex interfaces covering the entire Capture beam cross-section of the beam introduced, too so-called lens arrays, which are composed of lenses, each only a part of the beam cross-section, d. H. Partial beam, capture.
- optical Beam shaping system of the type mentioned is known. That in it
- the optical beam shaping system described comprises an optical one Element with two refractive interfaces that serve as entry surfaces and as exit surfaces for light emanating from an incandescent lamp are trained. Both on the entrance area and on the An array of cylindrical lenses is arranged at the exit surface, the Cylinder axes of these cylindrical lenses perpendicular to each other are aligned.
- the cylindrical lenses are designed such that they form Fresnel lenses.
- Both the entry area and the Exit surface has a curved cylindrical basic shape, with the cylinder axes of these curved basic shapes parallel to each other.
- the optical element in the essentially a hollow cylindrical, in particular one semi-cylindrical shape, this half cylinder being the incandescent lamp partially surrounds. Due to the curvature of the basic cylindrical shapes of the entrance and exit surface can be from the incandescent lamp outgoing light are partially deflected such that the Divergence of light in a direction perpendicular to the cylinder axis of the basic forms is reduced. Another reduction until complete collimation is achieved by another optical element achieved in the direction of propagation of the light behind the the aforementioned optical element is arranged.
- the invention is based on the knowledge that the previously known beam shaping systems used, planes Lens arrays and the other optical components, for example Imaging lenses and the like, in a single or a few have a few monolithic optical elements integrated.
- These monolithic optical elements according to the invention are characterized by the fact that the refractive interfaces, for example, the input and output side surface a lens, form a curved base shape, the surface of which quasi with the smaller lens areas of the individual lenses one Lens arrays modulated, i.e. is superimposed.
- the targeted Influencing all beam parameters includes. requires in In some cases, a certain amount of calculation to determine the Interface geometry, however, given the available standing computing capacity is no longer a disadvantage. This is offset by the further advantage that the monolithic optical elements according to the invention according to their Manufacturing do not need any further adjustment and are therefore in the Can’t misalign over time.
- the invention makes it more advantageous in each case Way, the previously required separate components of a optical beamforming system in a single optical Summarize element.
- the basic form of a surface lying in the beam path, d. H. the interface, the monolithic optical element is concave or convex and is cylindrical.
- the interface i.e. H. the basic form
- H. the basic form
- strip-shaped lenses can be molded into a square base or even facet-like lenses on a rotationally symmetrical - for example circular or elliptical basic shape be arranged rotationally symmetrical.
- Preferred developments of the invention provide that the different focal lengths for individual cylindrical lenses of an array and / or have different apertures. Through this Measures can be used to modulate the intensity in focus in such a way that for example Gaussian profiles or any other distribution can be specified.
- a lens array as Lens matrix is formed, d. H. as a two-dimensional array with a plurality of lens surfaces arranged in a grid, or also as a one-dimensional array in which, for example, a A plurality of cylindrical lens surfaces arranged linearly next to one another is.
- These can have different apertures, i. H. Broad and also have different focal lengths.
- a preferred embodiment of the invention Beam shaping system provides that the cylinder's longitudinal axes arranged on the two interfaces of the optical element Arrays of cylindrical lenses are arranged crossed to each other.
- a homogenizer as it is known in the art Technology from a plurality of cylindrical lens arrays and Imaging lenses is built into a single optical Realize component. This is not just a later misalignment locked out; by eliminating multiple interfaces also reduces the inevitable losses that result which results in an increase in overall efficiency.
- the Arrays are convex Have cylindrical lenses.
- convex In principle, lenses have the disadvantage of a real one To show focus in which the energy density may be can rise so far that either losses due to ionization or Damage to the optical material can occur.
- concave cylindrical lenses just a virtual focal point, so that In principle, losses due to the aforementioned effects do not occur can.
- the cylinder longitudinal axes of the cylinder lenses each parallel to the cylinder longitudinal axes of the interfaces are aligned on which they are arranged.
- Fig. 1 is an inventive, monolithic optical Element shown in a perspective view and as a whole provided with the reference number 1.
- the upper boundary surface 2 forms the light entry surface and the boundary surface 2 'located below the light exit surface - or vice versa.
- Both interfaces 2, 2 ' have a convex-cylindrical basic shape on.
- the cylinders are arranged crossed.
- Both in the upper interface 2 and in the lower interface 2 ' is a one-dimensional array of concave cylindrical lenses 3 molded.
- the cylinder longitudinal axes of the cylindrical lenses 3 lie each parallel to the cylinder longitudinal axes of the interfaces 2 or 2 '.
- this forms the monolithic optical element 1 already a homogenizer with defined optical properties.
- the Cylinder lenses 3 are concave and therefore no real focal point in the Have interior of the monolithic optical element 1. This avoids high energy densities that lead to a Can damage the optical material.
- FIG. 2 is similar in the same representation as in FIG. 1 constructed monolithic optical element shown, which is also provided with the reference number 1.
- Figure 1 One and only Difference to Figure 1 is that the in Boundaries 2, 2 'molded cylindrical lenses 4 convex-cylindrical are trained.
- FIG. 3 is an axial view of an interface 5 of a refractive element 1 according to the invention in a further Embodiment shown.
- the peculiarity is that that the basic form, d. H. the interface 5, circular is.
- the round base which according to the invention is one of the Drawing plane curved out, d. H. one cylindrical convex, basic shape, are rotationally symmetrical faceted individual cylindrical lenses 6 molded. These can according to the invention in turn be convex or concave and have different focal lengths and / or apertures.
- the interface 5 can also be elliptical.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
- Laser Beam Processing (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Optical Communication System (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Rod-Shaped Construction Members (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Claims (10)
- Système de mise en forme de rayon optique, comprenant un élément optique monolithique (1) doté de deux surfaces limites (2, 2', 5) réfractives qui peuvent servir de surfaces d'entrée et de sortie pour un faisceau de rayons, un réseau de lentilles cylindriques (3, 4, 6) étant disposé sur chacune des surfaces limites (2, 2', 5) et chacune des surfaces limites (2, 2', 5) présentant une forme de base cylindrique courbée à laquelle peut être associé un axe longitudinal de cylindre, caractérisé en ce que les formes de base cylindriques des surfaces limites (2, 2', 5) sont courbées de manière convexe et les axes longitudinaux de leurs cylindres sont dirigés perpendiculairement l'un par rapport à l'autre.
- Système de mise en forme de rayon optique selon la revendication 1, caractérisé en ce que les lentilles cylindriques (3, 4, 6) d'un réseau présentent des distances focales différentes.
- Système de mise en forme de rayon optique selon la revendication 1 , caractérisé en ce que les lentilles cylindriques (3, 4, 6) d'un réseau présentent des ouvertures différentes.
- Système de mise en forme de rayon optique selon la revendication 1, caractérisé en ce que les lentilles cylindriques (3, 4, 6) d'un réseau présentent des axes optiques orientés différemment.
- Système de mise en forme de rayon optique selon la revendication 1, caractérisé en ce qu'un réseau de lentilles optiques (3, 4, 6) est un réseau en une dimension.
- Système de mise en forme de rayon optique selon la revendication 1, caractérisé en ce qu'un réseau de lentilles optiques (3, 4, 6) est un réseau en deux dimensions.
- Système de mise en forme de rayon optique selon la revendication 1, caractérisé en ce que les axes longitudinaux des cylindres des lentilles cylindriques (3, 4, 6) disposées sous la forme de réseaux sur les deux surfaces limites (2, 2', 5) de l'élément optique (1) sont disposés en croix l'un par rapport à l'autre.
- Système de mise en forme de rayon optique selon la revendication 1, caractérisé en ce que les réseaux présentent des lentilles cylindriques concaves.
- Système de mise en forme de rayon optique selon la revendication 1, caractérisé en ce que les réseaux présentent des lentilles cylindriques convexes.
- Système de mise en forme de rayon optique selon la revendication 1, caractérisé en ce que les axes longitudinaux des cylindres des lentilles cylindriques (3, 4, 6) sont à chaque fois orientés parallèlement aux axes longitudinaux des cylindres des surfaces limites (2, 2', 5) sur lesquelles elles sont disposées.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19635942A DE19635942A1 (de) | 1996-09-05 | 1996-09-05 | Optisches Strahlformungssystem |
DE19635942 | 1996-09-05 | ||
PCT/EP1997/004805 WO1998010314A1 (fr) | 1996-09-05 | 1997-09-04 | Systeme de formation de faisceau optique |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0923747A1 EP0923747A1 (fr) | 1999-06-23 |
EP0923747B1 true EP0923747B1 (fr) | 2004-12-01 |
EP0923747B8 EP0923747B8 (fr) | 2005-06-08 |
Family
ID=7804640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97940157A Expired - Lifetime EP0923747B8 (fr) | 1996-09-05 | 1997-09-04 | Systeme de formation de faisceau optique |
Country Status (7)
Country | Link |
---|---|
US (1) | US6212011B1 (fr) |
EP (1) | EP0923747B8 (fr) |
JP (1) | JP3889446B2 (fr) |
AT (1) | ATE284045T1 (fr) |
AU (1) | AU4209297A (fr) |
DE (2) | DE19635942A1 (fr) |
WO (1) | WO1998010314A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111679439A (zh) * | 2020-08-11 | 2020-09-18 | 上海鲲游光电科技有限公司 | 光场调制器及其调制方法 |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6504650B1 (en) | 1999-10-19 | 2003-01-07 | Anthony J. Alfrey | Optical transformer and system using same |
GB0029947D0 (en) * | 2000-12-08 | 2001-01-24 | Sgs Thomson Microelectronics | Solid state image sensors and microlens arrays |
DE10139355A1 (de) * | 2001-08-17 | 2003-02-27 | Lissotschenko Vitalij | Anordnung und Vorrichtung zur optischen Strahlhomogenisierung |
US6700709B1 (en) | 2002-03-01 | 2004-03-02 | Boston Laser Inc. | Configuration of and method for optical beam shaping of diode laser bars |
US9157860B2 (en) | 2002-05-16 | 2015-10-13 | Applied Biosystems, Llc | Achromatic lens array |
US6982166B2 (en) * | 2002-05-16 | 2006-01-03 | Applera Corporation | Lens assembly for biological testing |
JP4324957B2 (ja) * | 2002-05-27 | 2009-09-02 | 株式会社ニコン | 照明光学装置、露光装置および露光方法 |
DE10231969B4 (de) * | 2002-07-15 | 2004-09-30 | Siemens Ag | Optisches Element zur Formung eines Lichtstrahls und Verfahren zum Bearbeiten von Objekten mittels Laserstrahlen |
US6809869B2 (en) | 2002-08-28 | 2004-10-26 | Genlyte Thomas Group Llc | Zoomable beamspreader for non-imaging illumination applications |
US6859326B2 (en) * | 2002-09-20 | 2005-02-22 | Corning Incorporated | Random microlens array for optical beam shaping and homogenization |
DE10335271A1 (de) | 2003-08-01 | 2005-02-17 | Hentze-Lissotschenko Patentverwaltungs Gmbh & Co.Kg | Strahlformungsvorrichtung |
DE10336957A1 (de) * | 2003-08-07 | 2005-02-24 | Hentze-Lissotschenko Patentverwaltungs Gmbh & Co.Kg | Vorrichtung zur Formung eines Lichtstrahles |
CN101124515B (zh) * | 2003-10-09 | 2010-05-26 | 莫林技术有限公司 | 在背景光下工作的投影接收面 |
US7619824B2 (en) * | 2003-11-18 | 2009-11-17 | Merlin Technology Limited Liability Company | Variable optical arrays and variable manufacturing methods |
US7268950B2 (en) * | 2003-11-18 | 2007-09-11 | Merlin Technology Limited Liability Company | Variable optical arrays and variable manufacturing methods |
WO2005050264A2 (fr) * | 2003-11-18 | 2005-06-02 | Merlin Technologies, Inc. | Ensembles optiques variables et procedes de fabrication variables |
CN100427995C (zh) * | 2004-03-06 | 2008-10-22 | Limo专利管理有限及两合公司 | 用于使光均匀化的装置和用这种装置进行照明的结构 |
WO2005085935A1 (fr) * | 2004-03-06 | 2005-09-15 | Hentze-Lissotschenko Gmbh & Co. Kg | Dispositif pour homogeneiser la lumiere, et systeme d'eclairage ou de focalisation faisant appel a ce dispositif |
US7486856B2 (en) * | 2004-03-24 | 2009-02-03 | Semiconductor Energy Laboratory Co., Ltd. | Beam homogenizer and laser irradiation apparatus |
CN100388053C (zh) * | 2004-06-03 | 2008-05-14 | 上海交通大学 | 激光束整形装置 |
DE102004028471A1 (de) * | 2004-06-11 | 2005-12-29 | Leica Microsystems (Schweiz) Ag | Beleuchtungseinrichtung, insbesondere Spaltlampe |
US7206132B2 (en) * | 2004-08-06 | 2007-04-17 | Visx, Incorporated | Lenslet array for beam homogenization |
DE102004039936A1 (de) | 2004-08-17 | 2006-02-23 | Hentze-Lissotschenko Patentverwaltungs Gmbh & Co. Kg | Vorrichtung zur Homogenisierung von Licht sowie Verfahren zur Herstellung der Vorrichtung |
WO2006084478A1 (fr) * | 2005-02-08 | 2006-08-17 | Hentze-Lissotschenko Patentverwaltungs Gmbh & Co. Kg | Dispositif pour homogeneiser de la lumiere et procede pour realiser ce dispositif |
DE102005053361B4 (de) * | 2005-11-07 | 2019-05-02 | Conti Temic Microelectronic Gmbh | Sendevorrichtung mit optischem Emitter und Strahlformungseinheit und Kraftfahrzeug mit einer solchen Sendevorrichtung |
WO2007072639A1 (fr) * | 2005-12-21 | 2007-06-28 | Nikon Corporation | Integrateur optique, dispositif optique d'eclairage, aligneur, et procede de fabrication du dispositif |
US7537395B2 (en) | 2006-03-03 | 2009-05-26 | Lockheed Martin Corporation | Diode-laser-pump module with integrated signal ports for pumping amplifying fibers and method |
JPWO2009020014A1 (ja) * | 2007-08-03 | 2010-10-28 | 株式会社ニコン | インテグレータおよび該インテグレータを使用した照明装置 |
DE102009010693A1 (de) * | 2009-02-26 | 2010-09-02 | Limo Patentverwaltung Gmbh & Co. Kg | Vorrichtung zur Homogenisierung von Laserstrahlung |
EP2309309B8 (fr) * | 2009-10-01 | 2018-05-23 | LIMO GmbH | Dispositif destiné à la formation de rayons laser |
JP5731932B2 (ja) * | 2011-08-25 | 2015-06-10 | 株式会社小糸製作所 | 車両用照明灯具 |
DE102013114083B4 (de) * | 2013-12-16 | 2018-10-25 | LIMO GmbH | Vorrichtung zur Formung von Laserstrahlung |
US10293482B2 (en) | 2015-11-12 | 2019-05-21 | ITI Electromagnetic Products Inc. | Self-assembling robotic construction system and associated methods |
DE102016216615A1 (de) | 2016-09-02 | 2018-03-08 | Carl Zeiss Meditec Ag | Beleuchtungssystem für die Bestimmung der Topografie der Kornea eines Auges |
KR20240124959A (ko) | 2021-12-13 | 2024-08-19 | 루미레즈 엘엘씨 | 자동차 후방 안개 조명용 확산 피처 |
CN114153075B (zh) * | 2022-01-11 | 2023-06-30 | 荣仪尚科光电技术(哈尔滨)有限公司 | 单平面与自由曲面或锯齿光栅的自然光匀化照明装置和方法 |
CN114459000A (zh) * | 2022-02-14 | 2022-05-10 | 赛尔富电子有限公司 | 一种透镜及灯具 |
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DE598546C (de) | 1930-10-01 | 1934-06-13 | Aeg | Verfahren zum Pruefen von Entladungsgefaessen mit eindeutiger Stromdurchlassrichtung, insbesondere Dampf- oder Gasentladungsgefaessen |
US4078854A (en) | 1971-10-05 | 1978-03-14 | Canon Kabushiki Kaisha | Stereo imaging system |
US4012115A (en) * | 1975-07-10 | 1977-03-15 | Qantix Corporation | Sawtooth shaped front screen |
AU553164B2 (en) * | 1980-10-31 | 1986-07-03 | Allergan Humphrey | Objective refractor for the eye |
JPS5781255A (en) * | 1980-11-10 | 1982-05-21 | Toshiba Corp | Transmission type projection screen |
US4733944A (en) | 1986-01-24 | 1988-03-29 | Xmr, Inc. | Optical beam integration system |
US4859043A (en) * | 1987-05-07 | 1989-08-22 | Cibie Projecteurs | High efficiency signal light, in particular for a motor vehicle |
DE4141937A1 (de) * | 1991-12-19 | 1993-06-24 | Nikolaus Laing | Zweiachsig brechende stufenlinse |
CA2108959A1 (fr) * | 1992-11-16 | 1994-05-17 | Thomas M. Golz | Lentille lenticulaire |
-
1996
- 1996-09-05 DE DE19635942A patent/DE19635942A1/de not_active Withdrawn
-
1997
- 1997-09-04 JP JP51224298A patent/JP3889446B2/ja not_active Expired - Fee Related
- 1997-09-04 AU AU42092/97A patent/AU4209297A/en not_active Abandoned
- 1997-09-04 AT AT97940157T patent/ATE284045T1/de active
- 1997-09-04 WO PCT/EP1997/004805 patent/WO1998010314A1/fr active IP Right Grant
- 1997-09-04 DE DE59712104T patent/DE59712104D1/de not_active Expired - Lifetime
- 1997-09-04 US US09/254,234 patent/US6212011B1/en not_active Expired - Lifetime
- 1997-09-04 EP EP97940157A patent/EP0923747B8/fr not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111679439A (zh) * | 2020-08-11 | 2020-09-18 | 上海鲲游光电科技有限公司 | 光场调制器及其调制方法 |
Also Published As
Publication number | Publication date |
---|---|
WO1998010314A1 (fr) | 1998-03-12 |
JP3889446B2 (ja) | 2007-03-07 |
DE59712104D1 (de) | 2005-01-05 |
DE19635942A1 (de) | 1998-03-12 |
EP0923747B8 (fr) | 2005-06-08 |
EP0923747A1 (fr) | 1999-06-23 |
ATE284045T1 (de) | 2004-12-15 |
JP2000517436A (ja) | 2000-12-26 |
US6212011B1 (en) | 2001-04-03 |
AU4209297A (en) | 1998-03-26 |
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